SGR burst detected by KW on 1998-10-17
at T0 = 54823.353 s UT (15:13:43.353)

Lightcurve
Lightcurve

Source properties

Name:  SGR 1806-20
Coordinates[J2000]: (272.1639, -20.4111)
Proposed associations: W31,  MC 13A,  massive star cluster
Distance:  8.7 kpc
P, Ṗ:   ∼ 7.55 s,  ∼ 49.5 × 10-11 s s-1
B surf:  ∼ 20.0 × 1014 G
Characteristic age:  ∼ 0.2 kyr

Temporal analysis

Ti (s) Tf (s) T100 (s) T90 (s) T50 (s)
-0.070 0.166 0.236 0.164-0.012+0.012 0.082-0.006+0.006

Spectral analysis

Model Spectra Fluence Peak flux α Ep kT1 R1 kT2 R2 χ2/dof
(10-6 erg/cm2) (10-5 erg/cm2/s) (keV) (keV) (km) (keV) (km)
2BB 1 - 3 2.74-0.09+0.09 2.00-0.16+0.16 ... 2.79-0.45+0.52 221.34-78.67+358.56 10.65-0.53+0.59 6.78-2.44+6.56 20.61/20